( ) 20

=75 =3050/. API 5L X52 PSL-2

2500p(kgs/sm), 0.33 psi(a) 0.266666667q(kgs/sm), 0.15 psi(b) 0.19047619D(sm), - 21.9 2024.85t(sm), 1.4 1446.32D(sm), - 19.1 1213.105658

4758.502 3237.96434.566 2659.43

R(sm), 10.95p/q 2.2000 fi(a) 1.00

n 3.0000 a, 4183.568506 p/q 2.8571 c, 12550.71 H(sm) 2500 b, 8367.14

15004500.00

225010.251025

29.35E, (kgs/sm2), 2060000

()(kgs/sm2),

a(max)(kgs/sm2)b(max)(kgs/sm2)(Q)(kgs/sm2)

J(sm4), (kgs/sm2)

W(sm3), b(kgs/sm2)

Q(kgs) L(sm)

()(kgs/sm2) Rsr(sm),

, /3

G, /

a () b ()

Sheet1